High voltage-controlled oscillator for WLAN applications: a practical solution

Xufen  Hua; Yong  Zhao

doi:10.6180/jase.202409_27(9).0003

High voltage-controlled oscillator for WLAN applications: a practical solution

Electro-Mechanical Engineering

Xufen HuaThis email address is being protected from spambots. You need JavaScript enabled to view it. and Yong Zhao

Wuxi Institute of Technology; Wuxi Jiangsu 214000 China

Received: July 11, 2023
Accepted: November 5, 2023
Publication Date: December 6, 2023

Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.6180/jase.202409_27(9).0003

One radio transmitter’s most crucial component is the oscillator. Designers have long tried to make the oscillation phase less noticeable. On the other hand, in addition to operating at high frequencies, expanding the oscillators’ swinging range is crucial. Therefore, a variety of approaches have been suggested in this study to boost swing. Removing the transistor of the sequence in cross-linked structures is one of the most crucial ways to boost the swinging. In this investigation, single-output swinging increased by 1.43 V with a 1.2 V power supply due to feedback bias control points in the bias point and transformer feedback communicated in numerous studies. The main goal of this work was to develop a high-level VCO for WLAN applications using CMOS 0.18 technology with a power consumption of 1.92 mW and phase noise at 1MHZ frequency offset of at least -122.5 dBc/HZ. In this study, a frequency range of 0.67GHz to 1.67GHz in binary code was defined. This oscillator has an output range of up to 2 GHz by adjusting the voltage. There are various ways to manage the bias point without using a transistor sequence to enhance the range of swing in LC oscillators. For these approaches, a bias-coupled transistor model can be used to forecast the employment of bias circuits to modulate the output limit switchers.

Keywords: Radio receiver transmitter; transistor trail; WLAN; regulated oscillator; VCO

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